From: Michael Carley Date: Fri, 04 Oct 1996 11:03:48 BST Subject: Re: CX-12 & materials (fwd)
> >The problem is that harp cover plates are not nearly as rigid > >as a cornet body so they could well vibrate enough to radiate > >sound. > > >Michael Carley, Mech. Eng., TCD, IRELAND. m.carl~eoleo.mme.tcd.ie > > But harp cover plates are swathed in the flesh of the player's hands, thus > dampening any tendency to vibrate. They are very rigid because they are > small, curved, and attached to the harp on three edges.
They aren't completely covered in player-flesh (how big are most people's hands?) and the fact that they're held on three edges doesn't mean anything. In fact, one of the paths of vibration transmission is probably through the attachment points.
- -- Viscous fluids turn about in perfect synchronicity, Shed from off a trailing edge in thin sheets of vorticity Michael Carley, Mech. Eng., TCD, IRELAND. m.carl~eoleo.mme.tcd.ie Home page
